Scrivener - Scrivener is a content-generation tool for composing and structuring documents.
Grammarly - Clear, effective, mistake-free writing everywhere you type.
Manuskript - Open-source tool for writers.
LanguageTool - Free proofreading tool for OpenOffice, LibreOffice, Firefox, and Chrome.
FocusWriter - FocusWriter is a fullscreen, distraction-free word processor designed to immerse you as much as...
ProWritingAid - For the smarter writer. A grammar checker, style editor, and writing mentor in one package.